Caldwell, AR 72322 Frost Dates
Caldwell, AR: when does the frost end?
Typically, the last spring freeze lands around 03/23, roughly 207 days out. Fall's first freeze usually shows up around 11/07, roughly 231 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Caldwell in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 10 weeks until Caldwell's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/23 isn't a guarantee
03/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Caldwell against the rest of the dataset
Caldwell's growing season runs about 231 days, ranking 10,258 of 40,283 US ZIP codes measured here, longest to shortest. Within AR, it ranks 219 of 687.
Learn more
Before leaning on 72322's figures: the frost range explains how to read the range around Caldwell's dates instead of trusting one, while local microclimates explains what one yard in Caldwell can differ from the 72322 normal.